Documentation/admin-guide/thunderbolt.rst

28 a database of the authorized devices and prompts users for new connections.
37   ACTION=="add", SUBSYSTEM=="thunderbolt", ATTR{authorized}=="0", ATTR{authorized}="1"
86 device must be authorized by the user before PCIe tunnels are created
98   /sys/bus/thunderbolt/devices/0-1/authorized	- 0
105 The ``authorized`` attribute reads 0 which means no PCIe tunnels are
108   # echo 1 > /sys/bus/thunderbolt/devices/0-1/authorized
117   /sys/bus/thunderbolt/devices/0-3/authorized	- 0
128 to the ``authorized`` attribute and the PCIe tunnels will be created in
136   # echo 1 > /sys/bus/thunderbolt/devices/0-3/authorized
145   # echo 2 > /sys/bus/thunderbolt/devices/0-3/authorized
154 ``authorized`` file to get the new key stored on the device NVM.
174 …YSTEM=="thunderbolt", ATTRS{iommu_dma_protection}=="1", ATTR{authorized}=="0", ATTR{authorized}="1"